PSLE Opal bought 2 fans of the same model at a sale. She paid $133.75 for them.
- What was the price of the fan before discount?
- Simon also bought 2 such fans at the price before discount. How much more did Simon pay than Opal?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 25% |
- 50% |
|
After |
75% |
50% |
125% |
(a)
Amount that Opal paid for the 2 fans in percent
= 75% + 50%
= 125%
125% → 133.75
1% → 133.75 ÷ 125 = 1.07
100% → 100 x 1.07 = $107
Price of the fan before discount = $107
(b)
Amount that Simon paid more than Opal
= 25% + 50%
= 75%
= 75 x 1.07
= $80.25
Answer(s): (a) $107; (b) $80.25